| 摘要 |
PROBLEM TO BE SOLVED: To provide a switching device easy to handle for an operator. SOLUTION: The seesaw switching device 100 has a knob 110 of which both end parts are rotatable with nearly central part as a rotation axis, protrusions 112, 113 formed on both end parts of the knob 110, a resin spring 122 extending in parallel with a rotation face of the knob 110, contacting the protrusion 112 with an external end part as a fulcrum and an internal end part as a free end, and a resin spring 123 extending in parallel with a rotation face of the knob 110, contacting the protrusion 113 with an external end part as a fulcrum and an internal end part as a free end. An increase of the load necessary for rotating the knob by pressing down the resin springs 122 or 123 is reduced. COPYRIGHT: (C)2007,JPO&INPIT
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